Robotics and electromyographic kinesiology analyses of in front handsprings in tumbling

抄録

In this study, the electrical activity patterns of the antagonistic bi-articular and mono-articular muscles of upper extremity, during in the hand contact period of in front handsprings in tumbling, were analyzed in terms of electromyographic (EMG) kinesiology and robotics. The mechanical two-joint link models equipped with a pair of the antagonistic bi-articular muscles in addition to two pairs of the antagonistic mono-articular muscles were used for robotics analyses. Reversal of triceps brachii long head (Tlo) and biceps brachii long head (Blo) activities was responsible for changes in the output force direction during the hand contact period. It was confirmed that the coordinating activity pattern of three pairs of the antagonistic muscles contributed to the output force control and the output force direction control. The results obtained here suggest the importance and necessity for coordinated muscle activities of bi-articular and mono-articular antagonistic muscles for analyses of sports.